I don't know if this makes a lot of sense or any, but I was thinking that
flash memory doesn't like too many writes. So I was thinking of creating
one or two RAMdisks, for all those temporary reads and writes that I need,
and only store the final result on the flash.
The whole system will run from flash, true, but the directory with plenty
of writes and processing should run in RAM. So I'd like to create a drive
in RAM and then mount this drive as for the busy directory.

Does this make sense? If yes, how to do it?

Uwe